Biochemistry - Phi and Psi Angles

 

Dihedral Angles:

Diheral angles are a measure of the rotation about a bond.

  • For four atoms A-B-C-D, the dihedral angle measures the rotation about the B-C bond.
  • It is the angle formed between two planes, the plane defined by A-B-C and the plane defined by B-C-D.
  • A positive dihedral angle is a clockwise rotation of the first plane on to the second.
  • A negative dihedral angle is a counterclockwise rotation.

Use the following check boxes to add the planes:


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